private void ConvertHours()
{
int posTo = ToString.IndexOf(':');
int posFrom = FromString.IndexOf(':');
int toHour = 0, toMinute = 0, fromHour = 0, fromMinute = 0;
if (posTo == -1)
{
int.TryParse(ToString, out toHour);
}
else
{
int.TryParse(ToString.Substring(0, posTo), out toHour);
int.TryParse(ToString.Substring(posTo + 1), out toMinute);
}
if (posFrom == -1)
{
int.TryParse(FromString, out fromHour);
}
else
{
int.TryParse(FromString.Substring(0, posFrom), out fromHour);
int.TryParse(FromString.Substring(posFrom + 1), out fromMinute);
}
To = new DateTime(1900, 1, 1, toHour, toMinute, 0);
From = new DateTime(1900, 1, 1, fromHour, fromMinute, 0);
}